Dipping tank applied to automatic dipping coating device
By installing vertical baffles and diversion plates in the chemical solution tank and using an overflow and replenishment system to maintain a stable chemical solution level, the problem of inconsistent immersion depth caused by the drop in chemical solution was solved, thus achieving stability and consistency in the coating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DONGXING SURFACE TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-04-28
AI Technical Summary
In an automatic immersion coating device, the liquid level of the coating solution gradually decreases as it is consumed, resulting in inconsistent immersion depth of the workpiece and affecting the coating effect.
Vertical partitions divide the liquid pool into an impregnation chamber and a return chamber. Overflow is used to maintain a stable liquid level. The liquid is connected to the liquid storage tank through the replenishment port and the return port. Combined with the diversion plate and adjustable feet, the uniformity and stability of the liquid are ensured.
Maintaining a constant immersion depth on the workpiece improves the consistency of the coating effect, reduces fluctuations in the solution level, and ensures the consistency of the coating effect for the same batch of workpieces.
Smart Images

Figure CN224167834U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of immersion coating technology, specifically relating to an immersion tank used in an automatic immersion coating device. Background Technology
[0002] Automatic immersion coating equipment uses mechanical devices to immerse a carrier carrying a workpiece into a chemical solution in an immersion tank for immersion coating. This helps to control the consistency of the immersion depth of the workpiece in the chemical solution. However, as the chemical solution is consumed, the liquid level gradually drops, which will cause the immersion depth of the workpiece to become shallower and affect the consistency of the immersion depth. In order to overcome this technical problem, it is necessary to provide an immersion tank to ensure that the liquid level of the immersion chemical solution remains constant during the immersion coating process of the workpiece. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an immersion tank for an automatic immersion coating device, which solves the technical problem that the solution in a conventional immersion tank gradually decreases as the immersion coating operation progresses, resulting in a gradual decrease in the immersion depth of the workpiece.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an immersion tank for an automatic immersion coating device includes a chemical solution tank with an open top. At least one vertically arranged vertical partition is provided in the chemical solution tank, which separates the chemical solution tank into an immersion chamber and a return chamber. The top of the vertical partition is lower than the upper edge of the chemical solution tank. The chemical solution in the immersion chamber flows into the return chamber by overflow. The bottom of the chemical solution tank is provided with a replenishment port communicating with the immersion chamber and a return port communicating with the return chamber. The replenishment port is connected to the chemical solution storage tank through a conduit and a supply pump, and the return port is connected to the chemical solution storage tank through a conduit.
[0005] As a preferred embodiment, a diversion plate is provided at the bottom of the impregnation chamber. The diversion plate is arranged parallel above the bottom plate of the medicine tank and forms a diversion cavity between the diversion plate and the bottom plate. A large number of diversion holes are evenly distributed on the diversion plate. The medicine entering the medicine tank from the replenishment port first enters the diversion cavity and flows upward through the various diversion holes of the diversion plate.
[0006] As a preferred embodiment, there are two vertical partitions, which are respectively located on both sides of the medicine pool. The two vertical partitions are parallel to each other and divide the medicine pool into two reflux chambers and one impregnation chamber. The two reflux chambers are located on both sides of the impregnation chamber.
[0007] As a preferred embodiment, the replenishment port is located at the bottom center of the impregnation chamber.
[0008] As a preferred embodiment, the diversion hole is a tapered hole with a larger upper opening and a smaller lower opening.
[0009] As a preferred embodiment, the medicine tank is provided with adjustable lifting feet at the four corners of its bottom.
[0010] The beneficial effects of this utility model are: This utility model uses the overflow of the liquid to ensure the stability of the liquid level height, so that the immersion depth of the workpiece remains constant during the immersion coating process, and ensures the consistency of the immersion coating effect of all workpieces.
[0011] This invention further utilizes a diversion plate to divert the replenished solution, thereby reducing the turbulence caused by the replenishment of the solution in the solution pool, reducing the fluctuation of the solution surface, and ensuring the consistency of the immersion coating effect of the same batch of workpieces. Attached Figure Description
[0012] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0013] Figure 1 This is a schematic diagram of the specific structure of the immersion tank described in this utility model;
[0014] Figure 1 In the middle: 1. Medicine liquid pool; 2. Vertical partition; 3. Impregnation chamber; 4. Return chamber; 5. Liquid replenishment port; 6. Return port; 7. Conduit; 8. Liquid supply pump; 9. Medicine liquid storage tank; 10. Diverter plate; 11. Diverter chamber; 12. Diverter hole; 13. Adjustable lifting feet. Detailed Implementation
[0015] The specific implementation scheme of this utility model will now be described in detail with reference to the accompanying drawings.
[0016] like Figure 1 The immersion tank shown in the automatic immersion coating device includes a chemical solution tank 1 with an open top. Two vertically arranged vertical partitions 2 are installed inside the chemical solution tank 1. The two vertical partitions 2 are located on both sides of the interior of the chemical solution tank 1 and are parallel to each other, dividing the chemical solution tank 1 into two return chambers 4 and an immersion chamber 3. The two return chambers 4 are located on both sides of the immersion chamber 3. The top of the vertical partitions 2 is lower than the upper edge of the chemical solution tank 1. The chemical solution in the immersion chamber 3 flows into the return chambers 4 by overflow. The bottom of the chemical solution tank 1 is provided with a replenishment port 5 communicating with the immersion chamber 3 and a return port 6 communicating with the return chamber 4. The replenishment port 5 is connected to the chemical solution storage tank 9 through a conduit 7 and a supply pump 8. The return port 6 is connected to the chemical solution storage tank 9 through a conduit 7.
[0017] During operation, the liquid supply pump 8 continuously pumps the liquid from the liquid storage tank 9 into the liquid pool 1. The pumping speed is determined by the liquid consumption rate, slightly exceeding it to minimize disturbance to the liquid in the liquid pool 1 caused by replenishment. The replenished liquid maintains the impregnation chamber 3 at a constant overflow level. The overflowing liquid enters the two return chambers 4, and then flows back into the liquid storage tank 9 through the return port 6 and the conduit 7.
[0018] The purpose of setting up two reflux chambers is to allow the overflowing medicine to flow to both sides, increasing the overflow channels and reducing fluctuations in the liquid level.
[0019] Based on the above technical solution, this embodiment further includes a diversion plate 10 at the bottom of the impregnation chamber 3. The diversion plate 10 is arranged parallel above the bottom plate of the liquid tank 1 and forms a diversion cavity 11 between it and the bottom plate. A large number of diversion holes 12 are evenly distributed on the diversion plate 10. The liquid entering the liquid tank 1 from the replenishment port 5 first enters the diversion cavity 11 and flows upward through the diversion holes 12 of the diversion plate 10.
[0020] When the liquid supply pump 8 pumps the chemical solution into the impregnation chamber 3, the solution within the chamber is disturbed. This improves the uniformity of the solution in different parts of the chamber, but also increases the fluctuation of the solution surface, affecting the consistency of the coating effect on the same batch of workpieces during impregnation coating. In this embodiment, a flow divider 10 is added to smooth the disturbance effect of the replenished solution on the solution in the impregnation chamber 3, maintaining both the uniformity and stability of the solution surface.
[0021] Preferably, the replenishment port 5 is located at the bottom center of the impregnation chamber 3, so that the diversion plate 10 can more evenly distribute the medicine solution.
[0022] In this embodiment, the diversion hole 12 is also set as a tapered hole with a large upper opening and a small lower opening to achieve the effect of pressurizing the replenishing medicine. The medicine enters through the small opening of the diversion hole 12 and releases hydraulic pressure in the gradually expanding channel, thereby further reducing the disturbance effect on the medicine in the impregnation chamber 3.
[0023] To level the liquid tank 1 and prevent overflow from one side of the impregnation chamber 3, adjustable lifting feet 13 are provided at the four corners of the bottom of the liquid tank 1 in this embodiment. Users can adjust the level of the liquid tank by adjusting each adjustable lifting foot 13, so that both sides of the impregnation chamber 3 overflow simultaneously and synchronously.
[0024] In practical applications, the number of vertical partitions 2 can be changed according to actual needs, such as 1, 3 or 4.
[0025] The working process of this utility model is as follows: Figure 1As shown, the user pumps the liquid medicine from the storage tank 9 into the impregnation chamber 3 through the supply pump 8 until the impregnation chamber 3 is full and begins to overflow. At this time, the liquid medicine overflowing into the return chamber 4 flows back into the storage tank 9 through the return port 6 and the conduit 7. The supply speed of the supply pump 8 is adjusted to keep the liquid level in the impregnation chamber 3 stable. By maintaining the supply speed of the supply pump 8, the impregnation coating process begins. The supply speed is slightly greater than the liquid medicine consumption rate, and the time interval between two impregnation coating processes is sufficient for the supply pump 8 to replenish the liquid medicine in the impregnation chamber 3.
[0026] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some of the application examples, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.
Claims
1. An immersion tank for use in an automatic immersion coating apparatus, comprising a chemical solution tank (1) with an open top, characterized in that, The medicine liquid pool (1) is provided with at least one vertically arranged vertical partition (2), which separates the medicine liquid pool (1) into an impregnation chamber (3) and a return chamber (4). The top of the vertical partition (2) is lower than the upper edge of the medicine liquid pool (1). The medicine liquid in the impregnation chamber (3) flows into the return chamber (4) by overflow. The bottom of the medicine liquid pool (1) is provided with a replenishment port (5) communicating with the impregnation chamber (3) and a return port (6) communicating with the return chamber (4). The replenishment port (5) is connected to the medicine liquid storage tank (9) through a conduit (7) and a liquid supply pump (8). The return port (6) is connected to the medicine liquid storage tank (9) through a conduit (7).
2. The impregnation tank according to claim 1, characterized in that, The bottom of the impregnation chamber (3) is provided with a diversion plate (10). The diversion plate (10) is arranged parallel above the bottom plate of the liquid tank (1) and forms a diversion cavity (11) between it and the bottom plate. A large number of diversion holes (12) are evenly distributed on the diversion plate (10). The liquid entering the liquid tank (1) from the replenishment port (5) first enters the diversion cavity (11) and flows upward through the diversion holes (12) of the diversion plate (10).
3. The impregnation tank according to claim 1, characterized in that, There are two vertical partitions (2), which are located on both sides of the liquid tank (1). The two vertical partitions (2) are parallel to each other and divide the liquid tank (1) into two reflux chambers (4) and one impregnation chamber (3). The two reflux chambers (4) are located on both sides of the impregnation chamber (3).
4. The impregnation tank according to claim 2, characterized in that, The replenishment port (5) is located at the bottom center of the immersion chamber (3).
5. The impregnation tank according to claim 2, characterized in that, The diversion hole (12) is a tapered hole with a larger upper opening and a smaller lower opening.
6. The impregnation tank according to claim 2, characterized in that, The medicine tank (1) is equipped with adjustable lifting feet (13) at the four corners of the bottom.